Conveyer flight attachment



JuneA 1 1926. 1,587,076

M. E. JOHNSON CONVEYER FLIGHT ATTACHMENT Filed March l1 1925 iHI 15 INVENTOR.

Wm/gm ATIToRNEY.

l lf) Patented June l, 1926.

MARK E.

intimi@ JOHNSON, OF SHABIOKIN, PENNSYLVANIA, ASSTGNOR 0F ONE-HALF TO EDWARD S. MEAD, TRUSTEE, OF PHILADELPHA, PENNSYLVANIA.

GONVEYER FLIGHT ATTACHMENT.

Application filed March 11, 1925. Serial No. 14,611.

In the handling of coal and the like, particularly at or in the vicinity of the mine from which it is obtained, endless conveyers, such as chains, provided with flights attached at intervals thereto are employed. `These flights are adapted to fit into troughs, and

as they are pulled along, the coal is pushed ging of the flights along the tracks produces a grinding, disagreeable.

The general object of the invention is to provide novel means whereby these objectionable features may be eliminated.

It is also an object of the invention to prowide conveyer flightswith novel means for taking the wear which is incident to the operation of dragging the flights in their return movements upon the return guides or trackways, which latter usually consist of metal.

A further object of the invention is to provide an attachment for the flights which is both adjustable and renewable, which attachment consists of material of a character such that the dragging of the same upon a metal track causes a minimum wearing of the latter.

To these and other ends my invention comprehends the construction and arrangement of parts as hereinafter described in detail, particularlypointed out in the claims, and as illustrated in the accomj'ianying drawing, in which I have shown certain convenient forms of mechanical embodiment of the said invention. However, it will be understood that changes in the details of construct-ion may be made within the scope of the invention without departing from the principle thereof.

ln the drawing:

Fig. l is a transverse sectional view of a conveyor structure comprising a conveyor chain to which flights provided with the at screeching noise which is very `theconveyers may consist of ropes of wirc tachment embodying my invention are connected at intervals;

F ig. 2 is a view partly in side elevation and partly in section of a portion of said apparatus showing portions ,of the lower and upper sectionsof the conveyor;

Fig. 3 is a view in perspective of one end portion of a fiight provided with an attach ment in accordance with my invention;

Fig. lis a horizontal section through a portion of the said flight and the said attachment.;

Fig. 5 is a perspective view of one end portion of a flight provided with a slightly modified construction of attachn'ient embodying my invention; and

Fig. (i is a horizontal sectional view through a portion of said fiight and the said modified construction of attachment.

Referring to the drawing: j

l designates a trough supported in a base or supporting portion 2 from which project upwardly posts or columns 3. rlihese posts or columns are arranged in couples and upon their upper ends tracks/ are provided, upon which the flights 5 are supported in their return movements. In the construction `as sho-wn the trac rs t consist of metal angle members'or plates, but may consist of other metal shapes or of other material which may be suitable for the purpose.

. The flights are secured at intervals to conveyer 'chains (i by means of securing or attaching brackets 7 of known construction.

it will be understood that the flights may be secured to vconveyor chains in anyother suitable or preferred manner, and also that wire rods or the like. 7

`The flights consist of metal plates, and usually the inner or base edges 8 thereof rest and are supported upon the tracks l upon their return movements. rlhe result of this is that the flights themselves are rapidly worn away, rendering replacement frequent, which adds greatly to the expense of' operation.

In order to prevent the edges of the flights from resting upon thetracks l have provided the same with wearing means adjacent their opposite ends, which means is adapted to rest upon the tracks and to sup port the flights inspaced relation withl re spect thereto. L 'The attachment comprises blocks l0 ont wood, fiber, or other lsuitaloic-i "uw i...

ich

material of a character such that it Will not cause undue Wear ofthe tracks 4. In order to secure these blocks to the flights I pref'- erably provide openings 11 in pairs through the flights near their opposite ends, through which bolts 12 are adapted to extend. The openings of the respective couples are spaced apart a distance substantially equ'al to the Width of the blocks 10. The bolts 12 also extend through holes or openings near the opposite ends of bars 13. The outer ends of the bolts are provided with heads, as shown, which rest against the outer sides of the bars 13. The opposite ends of the bolts which extend through the openings 11 are screiv threaded and are adapted to re c eive tightening nuts 141. Interposed between the nuts and the flights are Washers 15, preferably of a character to prevent loosening of the nuts from the bolts 12. The nuts are adapted to be adjusted so as to clamp the bars 18 tightly against the blocks to hold the same in any position desired. @ne end of each of the blocks projects beyond the adjacent edge 8 of the flight to which it may be attached and the projecting ends of the blocks rest upon the tracks L1, as is clearly shown in Figs. 1 and 2 of the drawing, so that the Wear incident to the dragging of the flight over the tracks 4 is taken up or received by the Wearing blocks and not by the. plates. It Will be understood that When any one or all of the blocks shall have become Worn so that the plates are not protected from Wear the nuts 1st may be loosened to permit inward adj ustmcnt of the blocks into position to again afford protection of the plates against Wear.v

In the construction as shown in Figs. 5 and 6 the bolts 12 and the plate 13 are eliminated. In the latter construction vpro,- jections 17 are struck up from the plates 5 near their opposite ends. These projections are provided with openings 18 therethrough near their outer ends. fearing blocks 10 are placed between these projections which are thereafter clamped against the opposite sides thereof by means of bolts 19. Said bolts extend through the openings 18 and each bolt is provided upon one end With a nut 20 which is adapted to be tightened to clamp the projections 17 against the block 10 betvfeenthe same to hold it in any adjusted position. By loosening the nut 20 of any pair of projections theblock 1() between such projections may be adjusted as may be desired.

It will be seen that by my invention an attachment is provided for the flights of conveyers by means of which the Wear of said flights due to the dragging of the same upon return traclrs is eliminated and also that the said attachments provide means whereby the grinding, screeching noise cident to the dragging ol such flights upon tracks during their return movements is eliminated.

Having thus described my invention, what I claim and desire to secure by Letters .Patent is:

1. Means for attachment to conveyer flights to prevent wear of the same upon the return traveling movement thereof which comprises Wearing blocks of suitable material, the inner end of each of which is adapted to project beyond the inner edge of said flight, and means for adjustably securing said Wearing blocks to the said flight.

2. Means for preventing Wear of conveyer flights upon the return movement thereof Which comprises Wearing blocks of relatively soft material secured thereto near the opposite ends thereof, and adjustable means for adjustably securing said blocks to the said flights.

3. Means for preventing the Wear of conveyer flights upon the return movement thereof which comprises Wooden blocks secured thereto adjacent the opposite ends thereof', the inner ends of which blocks project beyond the adjacent inner edge of the said flights, a bar extending across each of said blocks in spaced relation to the said flights, and means for clamping the said bars Iagainst the said blocks to hold them in adjusted position.

4. Means for preventing` Contact of the flights of a conveyer With the return tracks of a conveyor structure comprising Wearing blocks of Wood located near the opposite ends of the said respective flights, the inner ends of which project beyond the inner edges of the said flights, and adjustable means for adjustably securing the said bloclrs to said flights.

5. Means for preventing contact of the flights of a conveyer with the return tracks of a conveyer structure comprising wearing blocks of suitable material located near the opposite ends of ther respective flights, the inner ends of said 'blocks projecting beyond the inner edges of said flights, and the said blocks being adjustable, bolts extending` through openings in said flights upon opposite sides of said blocks, the distance between said bolts being substantially equal to the Width of said blocks, bars seated against the outer surfaces of said blocks, which bars are provided With openings near their opposite ends, through which openings the said bolts extend, and means for tightening the said 'bolts to clamp the said bars against said blocks to hold the latter in adjusted position upon said flights.

In testimony that I claim the foregoing as my invention I have hereuntov signed my name this 7th day of March, A. D. 1925. 

